Valve



AVAILABLE com" No Model.)

J. E. STANNARD. VALVE.

No. 517,199. Patented Mar. .27, 1894.

/ (UM/wurm JOHN E. STANNARD, 0F SPRUGFiELD, liiASSCiIUTTS.

SPECEFCATION forming pent of Lettere Ietent il'o, 517,199, dated Merch 27, 1894i.

pplication filed July 212, '5%93. Serial No. 4.33.5357. (No Bladel.)`

To @ZL whom u; may concern:

Beit .known that i, Jol-nv E. Summen, a citizenof the United States, residing at pringfield, in the county of Hampden and Siete of Massachusetts, have invented certain new and useful improvements in Valves, ci' which the following is e specification. n

My invention relates tov valves, and it hns for its object to provide a simple, cheap and effective vaiye which may be eiectricztlly controlled and operated 'by some motor force, end control almotor fiuid, and to these ends it consists in a valve involving the features of construction, arrangement, and having the mede of operation suhstentieily as hereinafter more particularly set forth.

Referring to the accompanying drawings, Figure l, is :t vertical, longitudinal, peri seetional View of e vaive embodying.; my invention. v Fig. 2, is a pien view oi the seine; Fig. 3, is an end sectional view on the line 3-3, Fig. l.

In the use of various inotoriinids, such as steam, water and the like, it is cominon to have throttle valves, or siinilnr devices for controlling the iiuid, arranged at or neer the point where the power of the fluid is need, and it is also desirable to `have ineens whereby the motoiiiuid may be controlled from e distance. Especially, is this so in the use of steam for running engines, driving machinery of t fee tory, or the' like, where in cese of accidents at a distance from the engine, it is desirable to provide ineens so that any one may quickly stop the engine. it is also useful for other purposes, as controlling the suppiy of Water to e portion of a town or city, and in many other cases which will suggefst themselves to those skilled in the art, and the object of my invention is to provide a device which shall be controlled from any desired distance, and which wliencontrolled, is automatic in its ection to close the pipes or 'otherwise control the motor fluid, whatever it may be.

In the accompanying drawings, l lie/ve shown my invention as applied to a valve of peculiar construction, end while i prefer to use such a construction as that illustrated, itis evident that this construction may be varied by those skilled in the art, Without departing m the principles of nay invention, sind nui,-

stantiaiy the sani thereby. A

The valve casing A, iff, adapted to be included in any distributing ciro. iuid, being providod with confA linge A', A2, and the case is extended iateraiiy, es et B, B', to receive the reciinecsting valve G. The end i3", of the 'va-ive canine; 'oe ciosed by a ping D, while B, is closed bye. suitnole gland er iig-igen E. The *ve-ive C, is

renuiieeecrnpiished shown es connected te e, rod. to which ie connected a piston is connected by n piston-rod ii, passing through the gland or stuffing-note ,Extending from the passage-weyi, ci the velvecaeing, through, which the meter duid ordinariiy is a bypass l, connecting the .mein 'pens .gen/vai; EQ?, end the epaee H', around the pistonrod ii, and it wiii thus be eeen that under ordinary conditions, es those shown in i, the steam or ether motor duid, in the main passages A3, beers npon the cou'- tiguons face of the piston G, tending to force the valve to its seat, while the orother motor Huid; pasein g through the passage if., into the chamber ii', presses on. the opposite side ci the piston G, tending to force the valve to the position shown in Fig. l, but it will be observed; that owing to the 'rect that pieton-redrednces the effective eroe, of this side of the pisien,there isegreaterpressureon the inner face' of the piston G, and the veive is in unstable.

eqnilibrinimthe presenre in the mein passage being sufficient to overcome the pressure in the chernher li', and close the vaive C. I have shown the lay-pass l'gconnected at the outlet end A?, ci the ense, out it is evident that it may he' connected at the inlet end A, and in seine instances this ispreferable.

in order to maintain the valve Qin/its open 'poeitioml provide e lever Lwhieh is pivoted to a link M, secured to the velve/cesingA, the lever'ieing pivetaliy connected to the piston-rod H, and shown .as extending upward and provided with e, suitable handle L. Also mountedl on the leveris a sind or projection l.

Mounted on some suitable partof the valve casing is n freine N, supporting en electr@ magnet O, iieving an armature lever?, the erinatnre g2, oi which is arranged adjacent the poles of the magnet, While the enguinr en .it of e motor M tended lever P, is provided with a catch p', engaging the lug Z, on the handle L. The coils of the magnetareconnected by suitable conductors, not shown herein, to anysuitable circuit-closing device, at any distant point, through the medium of which the magnet can be energized by any proper person, and when so energized, it will attract its armature jp, raising the armature lever P, and releasing the lever L. When this is done, the pressure of the steam on the inner head of the piston G', will overcome the pressure of the steam or. other motor fluid on the opposite head of the piston and force the valve to its seat, shutting off the motorluid from the main passage way, and as a consequence, stopping the engine or other'm'achinery operated thereby.

It will be observed that by providing a steam-chest H', in connection with the main passage of the steam, I am enabled to prevent too rapid action of the valve, which might derange its operation when quickly re leased by the magnet, but the piston and the rod connected to the piston head can be so proportioned, according to the pressure of steam or other motor duid used, as to insure a proper seating of the valve when released. The valve is restored to its normal position, shown in Fig. 1, by means of the handle L', of the lever, and there remains until again released in caseol" emergency,in the manner above indicated.

While an ordinary cylinder or flat slide valve may be used, I preferably use a hollow valve C, as shown more particularly in Fig. 3, wherein valve C, consists of a slotted cylindrical outside C', having a longitudinal slot c, and provided with an inward extension C2, leaving steam spaces on each side of the ccntral projection, so that the pressure of the steam in the valve will tend to expand the cylindrical portion, and tightly closethe valve against leakage, making a tight joint, but at the same time permitting of freedom of movement in the valve seat.

What I claim is- 1. A valve, comprising a valve case having a main passage and lateral extensions, a valve mounted in the extensions and connected to a piston, a passage from the main passage leading to a steam chamberbehind the piston, a. piston rod connected to the piston, and an electro-magnet controlling said piston-rod, substantially as described.

2. In a valve, the combination with a valve casing, having a main passage and lateral extensions, a valve mounted in one of the extensions, a rod connecting the valve to the piston in the other extension, a piston-rod connected therewith, a lever connected lto the valve case, a magnet mountpd on the valve case, and an armature lever controlled by the magnet and controlling the lever, substantially as described.

3. Ina valve, the combination with a casing having a main passageand lateral extensions, of a valve, valve piston and piston-rod mounted in the lateral extensions, a lever connected to the piston-rod, a link connecting the lever with the valve'casing, a magnet mounted on the valve casing, and an armature lever controlled by the magnet and engaging n. lug on the lever, substantially as described.

r4. In a valve, the combination with a valve casing having a main passage and lateral extensions, of a valve, a valve-piston a lever connected with the valve and a mdgnet controlling the lever, the valve being hollow topermit of its expanding to tightly fit the valve seat, substantially as decori f 5. In a valve, the combination with a'valve casing having a main passage and lateral extensions, ot a valve and valve piston reciprocating'in the extensions, the said' valve comv prising a slotted, hollow cylinder having a central, internal extension, substantially as described.

6. A Valve, comprising a valve casing having a main passage and lateral extensions, a plug closing one of the extensions, a gland closing the other, a hollow valve reciprocating in the extensions, a piston connected to the valve, a. piston-rod extending through the gland, a passage from the chamber around the piston-rod to the main passage of the valve, a lever connected to the piston-rod, a link connecting the lever with the valve casing, a magnet mounted on the valve casing, and an armature lever operated by the magnet and controlling the valve lever, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOIIN E. S'lANNARD.

Witnesses:

F. II. STEBBINB, GEO. F. FULLER. 

